The most common and most likely answer to this crossword clue is the 9 letter word EXCLUSIVE
I've seen this crossword clue in The Guardian
E
X
C
L
U
S
I
V
E
Buddy explains!
The straight part
We know that "exposé" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case exposé = exclusive.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EXCLUSIVE mean?
EXCLUSIVE noun- Information (or an artefact) that is granted or obtained exclusively.
- A member of a group who exclude others from their society.
- (grammar) A word or phrase that restricts something, such as only, solely, or simply.
- Excluding items or members that do not meet certain conditions.
- Referring to a membership organisation, service or product: of high quality and/or renown, for superior members only. A snobbish usage, suggesting that members who do not meet requirements, which may be financial, of celebrity, religion, skin colour etc., are excluded.
- Exclusionary.
- Whole, undivided, entire.
- Of or relating to the first-person plural pronoun when excluding the person being addressed.
- (of two people in a romantic or sexual relationship) Having a romantic or sexual relationship with one another, to the exclusion of others.